<?php

class PurchaseOrderController extends Controller
{
	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update','form','createPdf', 'receivePo'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'users'=>array('admin'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}
	
	public function actionForm()
	{
		
		if (isset($_POST['form_action']))
		{

			$action = $_POST['form_action'];
			$items = $_POST['po'];
			
			if ('delete' == $action)
			{
				//print_r($items);
				
				foreach($items as $itemId)
				{
					echo $itemId."<br>";
					$itemObj = $this->loadModel($itemId);
					$itemObj->delete();
				}
				
				

			}
			
		}
		
		$this->redirect(array('vendor/purchaseOrders'));
	}
	
	public function actionReceivePo($id)
	{
		$model = $this->loadModel($id);
		
		InventoryMovement::receivePurchaseOrder($model);

		$model->markAsReceived();
		
		$this->redirect(array("purchaseOrder/view/id/{$id}"));
		
	}
	
	public function actionCreatePdf()
	{
		Yii::import('ext.dompdf.*'); 
		require_once('dompdf_config.inc.php');
		
		
		$this->layout = 'pdf';
		$output = $this->render('_view',array(),true);
		
		
		$dompdf = new DOMPDF();

    	$dompdf->load_html($output);

    	$dompdf->render();
    	
    	// We'll be outputting a PDF
		header('Content-type: application/pdf');

		// It will be called downloaded.pdf
		header('Content-Disposition: attachment; filename="downloaded.pdf"');
		
		echo $dompdf->output();
		
		
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$model = $this->loadModel($id);
		
		$line_items = PurchaseOrderLineItems::model()->findAllByPk($id);
		
		$this->render('view',array(
			'model'=>$model,
			'line_items' => $line_items
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model=new PurchaseOrder;

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['PurchaseOrder']))
		{
			
			$_POST['PurchaseOrder']['organization_id'] = Yii::app()->user->getState('organization_id');
			$_POST['PurchaseOrder']['date_created'] = date("Y-m-d");
			$_POST['PurchaseOrder']['status'] = 3;
			
			$model->attributes=$_POST['PurchaseOrder'];
			
			if ($model->save())
			{
				
				$this->saveLineItems($_POST, $model->id);

				Yii::app()->user->setFlash('notify',"<h3>Your PO has been created.</h3>");
				$this->redirect(array("purchaseOrder/update/id/{$model->id}"));
				$this->refresh();

			}
				
		}
		
		$line_items = PurchaseOrderLineItems::getJsonDefaultLineItems();

		$this->render('create',array(
			'model'=>$model,
			'item_codes' => Item::getJsonItemCodeData(),
			'item_names' => Item::getJsonItemNameData(),
			'item_costs' => Item::getJsonItemCostData(),
			'line_items' => $line_items
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['PurchaseOrder']))
		{
			$model->attributes = $_POST['PurchaseOrder'];
			
			
			if($model->save())
			{
				// remove current line items associated with the po
				PurchaseOrderLineItems::model()->deleteByPk($id);
				
				// re-add them in the order they are given
				$this->saveLineItems($_POST, $id);

				Yii::app()->user->setFlash('notify',"<h3>Your PO has been updated.</h3>");
				//$this->redirect(array("purchaseOrder/update/id/{$model->id}"));
				$this->refresh();
				
				
			}
		}

		$line_items = PurchaseOrderLineItems::getJsonDefaultLineItems($id);

		$this->render('update',array(
			'model'=>$model,
			'item_codes' => Item::getJsonItemCodeData(),
			'item_names' => Item::getJsonItemNameData(),
			'item_costs' => Item::getJsonItemCostData(),
			'line_items' => $line_items
		));
	}
	
	private function saveLineItems($lineItemData, $poId)
	{
	
		for($i=0;$i<count($lineItemData['lineid']);$i++)
		{
			
			$line_type = $lineItemData['line_type'][$i];

			$LineItem = new PurchaseOrderLineItems();
			$LineItem->purchase_order_id = $poId;
			
			if ($line_type == 'item')
			{
				$LineItem->item_id = $lineItemData['item_code'][$i];
				$LineItem->quantity = $lineItemData['qnty'][$i];
			}
			else {
				$LineItem->item_id = 0;
				$LineItem->quantity = 0;
			}
			
			$LineItem->note = $lineItemData['note'][$i];
			$LineItem->type = $lineItemData['line_type'][$i];
			
			$LineItem->save();

		}

	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'index' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('PurchaseOrder');
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new PurchaseOrder('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['PurchaseOrder']))
			$model->attributes=$_GET['PurchaseOrder'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id)
	{
		$model=PurchaseOrder::model()->findByPk((int)$id);
		//if($model===null)
			//throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='purchase-order-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}
